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MDL-47011 core_grade: added naive natural weight calculation to gradebook

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Andrew Davis
2014-10-03 13:49:22 +08:00
committed by Adrian Greeve
parent 677bc07377
commit a2f1f65db4
1 changed files with 43 additions and 0 deletions
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lib/grade/grade_category.php
+43
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@@ -461,6 +461,9 @@ class grade_category extends grade_object {
// needed mostly for SUM agg type
$this->auto_update_max($items);
// Needed for Natural aggregation type.
$this->auto_update_weights();
$grade_inst = new grade_grade();
$fields = 'g.'.implode(',g.', $grade_inst->required_fields);
@@ -1026,6 +1029,46 @@ class grade_category extends grade_object {
}
}
/**
* Recalculate the weights of the grade items in this category.
* THIS DOES NOT TAKE INTO ACCOUNT HIDDEN ACTIVITIES, GROUPS.
*/
private function auto_update_weights() {
if ($this->aggregation != GRADE_AGGREGATE_SUM) {
// This is only required if we are using natural weights.
return;
}
$children = $this->get_children();
$grade_item = null;
// Calculate the sum of the grademax's of all the items within this category.
$totalgrademax = 0;
foreach ($children as $sortorder => $child) {
$grade_item = null;
if ($child['type'] == 'item') {
$grade_item = $child['object'];
} else if ($child['type'] == 'category') {
$grade_item = $child['object']->load_grade_item();
}
$totalgrademax += $grade_item->grademax;
}
reset($children);
foreach ($children as $sortorder => $child) {
$grade_item = null;
if ($child['type'] == 'item') {
$grade_item = $child['object'];
} else if ($child['type'] == 'category') {
$grade_item = $child['object']->load_grade_item();
}
$grade_item->aggregationcoef2 = $grade_item->grademax/$totalgrademax;
$grade_item->update();
}
}
/**
* Internal function for category grades summing
*